The reason for the dramatic decline in the number of measles cases from the 1960s to 2010 in the United States was because the vaccine

Non renewable resources like petroleum eventually

About 70 percent of the earth's surface is water-covered, and about 96.5 percent of all earth's water is salt water. identify the watery feature on earth that is made of freshwater rather than salt water. a) bay b) glacier c) ocean d) sea it is not incomplete this is the true question

Which of the following electromagnetic waves can create ions?